* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Microsoft Yahei", sans-serif;
  background-color: #f3f4f6;
  color: #111827;
  line-height: 1.6;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
}
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(243, 244, 246, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.4);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: bold;
  color: #1d4ed8;
  font-size: 16px;
}
.logo img {
  width: 40px;
  height: 40px;
}
.nav {
  display: flex;
  gap: 18px;
  font-size: 14px;
}
.nav a {
  position: relative;
  padding-bottom: 4px;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #3b82f6, #ef4444);
  transition: width 0.2s ease;
}
.nav a:hover::after {
  width: 100%;
}
.section {
  padding: 50px 0 40px;
  background: linear-gradient(135deg, #dbeafe, #fee2e2);
  scroll-margin-top: 100px;
}
.inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}
.text {
  flex: 1 1 320px;
}
.text h1 {
  font-size: 30px;
  color: #1e40af;
  margin-bottom: 16px;
}
.subtitle {
  font-size: 15px;
  margin-bottom: 24px;
  color: #374151;
}
.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-block;
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #ef4444);
  color: #fff;
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.4);
}
.btn-outline {
  border: 1px solid #3b82f6;
  color: #1d4ed8;
  background-color: rgba(255, 255, 255, 0.6);
}
.btn-outline:hover {
  background-color: rgba(219, 234, 254, 0.9);
}

.image {
  flex: 1 1 320px;
  display: flex;
  justify-content: center;
}
.image img {
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(30, 64, 175, 0.3);
}
.kite-wrapper {
  position: relative;
}
.kite {
  transition: transform 0.1s linear;
}
.section {
  padding: 50px 0;
}
.section-light {
  background-color: #f3f4f6;
}
.section-dark {
  background: radial-gradient(circle at top, #1f2937, #020617);
  color: #e5e7eb;
}
.section-footer {
  background-color: #020617;
  color: #9ca3af;
}
.section-header {
  text-align: center;
  margin-bottom: 30px;
}
.section-header h2 {
  font-size: 24px;
  margin-bottom: 8px;
  color: inherit;
}
.section-header p {
  font-size: 14px;
  color: inherit;
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.project-card {
  background-color: #ffffff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
}

.project-card img {
  height: 160px;
  object-fit: cover;
}

.project-content {
  padding: 14px 16px 16px;
}

.project-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: #1e40af;
}

.project-content p {
  font-size: 13px;
  color: #4b5563;
}
.hover-card {
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.hover-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.18);
}
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.process-card {
  background-color: rgba(15, 23, 42, 0.85);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.6);
}
.process-card img {
  height: 150px;
  object-fit: cover;
  width: 100%;
}
.process-card h3 {
  font-size: 16px;
  margin: 10px 14px 4px;
  color: #bfdbfe;
}
.process-card p {
  font-size: 13px;
  margin: 0 14px 14px;
  color: #e5e7eb;
}
.artisan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.artisan-card {
  background-color: #ffffff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}
.artisan-card img {
  height: 180px;
  object-fit: cover;
  width: 100%;
}
.artisan-content {
  padding: 16px;
}
.artisan-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: #1e40af;
}
.artisan-content p {
  font-size: 13px;
  color: #4b5563;
}
.experience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 16px;
}
.experience-card {
  background-color: #ffffff;
  border-radius: 16px;
  padding: 18px;
  text-align: center;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  border: 1px solid transparent;
}
.experience-card img {
  object-fit: cover;
  width: 100%;
}
.experience-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: #1e40af;
}
.experience-desc {
  font-size: 13px;
  color: #4b5563;
}
.experience-card.active {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.35);
  border-color: #3b82f6;
}
.experience-detail-panel {
  font-size: 13px;
  color: #4b5563;
  background-color: #ffffff;
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.06);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: space-between;
  padding: 24px 0;
}
.footer-inner h3 {
  font-size: 15px;
  margin-bottom: 8px;
  color: #e5e7eb;
}
.footer-inner p {
  font-size: 13px;
  color: #9ca3af;
}
.footer-bottom {
  border-top: 1px solid #111827;
  text-align: center;
  padding: 12px 0;
  font-size: 17px;
  color: #6b7280;
}
@media (max-width: 768px) {
  .main-nav {
    display: none;
  }
  .section {
    padding-top: 30px;
  }
  .text h1 {
    font-size: 24px;
  }
}